Dosing and safety for GAVRETO® (pralsetinib),A well-established safety profile in RET+ mNSCLC,Once-daily dosing for patients with RET+ mNSCLC,Dosing guidance for GAVRETO® (pralsetinib),GAVRETO® (pralsetinib) dosing overview
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Important Safety Information Full Prescribing Information Visit Website
GAVRETO logo Lung icon

The only once-daily, oral therapy
designed to selectively target RET
in RET-fusion positive mNSCLC1

GAVRETO has a well-established safety profile with dose
modifications to help patients stay on therapy1

GAVRETO has a well-established safety profile
with dose modifications to help
patients stay on therapy1

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  • I know tolerability and adherence are high priorities when considering treatment options. I am sharing some information on how GAVRETO offers dosage modifications in the event of adverse reactions.
  • I hope this finds you well. I wanted to take a moment to share some key details about GAVRETO, including dosing options to best support treatment decisions.
  • Thank you for taking the time to connect earlier. I thought you might find this dosing guidance and safety information for GAVRETO helpful as you evaluate treatment options.
  • As you may know, Rigel Pharmaceuticals is now the manufacturer for GAVRETO. I would be happy to share additional information on Rigel ONECARE, which offers support for you and your patients taking GAVRETO.
  • As your GAVRETO representative with Rigel Pharmaceuticals, I’m reaching out with some information on once-daily dosing and AE management for your patients with RET-driven mNSCLC.

INDICATION
GAVRETO is indicated for the treatment of adult patients with metastatic rearranged during transfection (RET) fusion-positive non-small cell lung cancer (NSCLC) as detected by an FDA-approved test.

SELECT SAFETY INFORMATION
Interstitial Lung Disease (ILD)/Pneumonitis: Severe, life-threatening, and fatal ILD/pneumonitis can occur in patients treated with GAVRETO. Pneumonitis occurred in 12% of patients who received GAVRETO, including 3.3% with Grade 3-4, and 0.2% with fatal reactions. Monitor for pulmonary symptoms indicative of ILD/pneumonitis. Withhold GAVRETO and promptly investigate for ILD in any patient who presents with acute or worsening of respiratory symptoms (e.g., dyspnea, cough, and fever). Withhold, reduce dose or permanently discontinue GAVRETO based on severity of confirmed ILD.

Please see additional Important Safety Information below and full Prescribing Information.

Learn about support for you and your patients

GAVRETO offers patients a once-daily dosing schedule1

Four 100-mg capsules once daily graphic Four 100-mg capsules once daily graphic

Stomach icon

Patients should take GAVRETO on an empty
stomach (no food intake for at least 2 hours before
and at least 1 hour after taking GAVRETO).1

Recommended dosage reductions for adverse
reactions1

Each dosage uses the same single-strength capsules

Dosage reduction chartset Dosage reduction chartset
Capsules are not actual size.
Permanently discontinue GAVRETO in patients who are unable to tolerate 100 mg taken orally once daily.

GAVRETO offers a well-established safety profile1

Discontinuations

Teal chevron icon 9.6% of patients discontinued due to adverse reactions considered treatment-related by the trial investigator2
Teal chevron icon 20% of patients permanently discontinued due to any adverse reaction1

Dose modifications and interruptions

Teal chevron icon 51% of patients treated experienced dose reductions due to an adverse reaction1
Teal chevron icon 73% of patients treated experienced dosage interruptions due to an
adverse reaction1

Adverse reactions (≥15%) in RET fusion-positive mNSCLC
patients who received GAVRETO in ARROW1

Adverse reactions table Adverse reactions table
* For grouped terms, please refer to the U.S. Prescribing Information (USPI).

Clinically relevant adverse reactions occurring in <15% of patients included pneumonitis (14%), vomiting (14%), abdominal pain (14%), and stomatitis (6%).

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Download the Product Brochure
Review the efficacy, safety, and clinical trial outcomes of GAVRETO.
Download the Dosing and Administration Guide
Review additional information regarding managing treatment with GAVRETO.
Download the Enrollment Form
Enroll patients in RIGEL ONECARE® for patient support services, including benefits verification, prior authorizations, temporary and long-term free drug supply, and adherence support. All Rigel programs are subject to eligibility requirements. Restrictions may apply.
Support is available for you and your GAVRETO patients
RIGEL ONECARE® offers support for every step of treatment, including how to access GAVRETO, copay assistance, patient support services, and more.

For more information about dosing and adverse
reactions, visit 
www.GAVRETO-hcp.com

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SELECT SAFETY INFORMATION
Hypertension: Occurred in 35% of patients, including Grade 3 hypertension in 18% of patients. Overall, 8% had their dose interrupted and 4.8% had their dose reduced for hypertension. Treatment-emergent hypertension was most commonly managed with anti-hypertension medications. Do not initiate GAVRETO in patients with uncontrolled hypertension. Optimize blood pressure prior to initiating GAVRETO. Monitor blood pressure after 1 week, at least monthly thereafter and as clinically indicated. Initiate or adjust anti-hypertensive therapy as appropriate. Withhold, reduce dose, or permanently discontinue GAVRETO based on the severity.

Hepatotoxicity: Serious hepatic adverse reactions occurred in 1.5% of patients treated with GAVRETO. Increased aspartate aminotransferase (AST) occurred in 49% of patients, including Grade 3 or 4 in 7% and increased alanine aminotransferase (ALT) occurred in 37% of patients, including Grade 3 or 4 in 4.8%. The median time to first onset for increased AST was 15 days (range: 5 days to 2.5 years) and increased ALT was 24 days (range: 7 days to 3.7 years). Monitor AST and ALT prior to initiating GAVRETO, every 2 weeks during the first 3 months, then monthly thereafter and as clinically indicated. Withhold, reduce dose or permanently discontinue GAVRETO based on severity.

Hemorrhagic Events: Serious, including fatal, hemorrhagic events can occur with GAVRETO. Grade ≥3 events occurred in 4.1% of patients treated with GAVRETO including one patient with a fatal hemorrhagic event. Permanently discontinue GAVRETO in patients with severe or life-threatening hemorrhage.

Tumor Lysis Syndrome (TLS): Cases of TLS have been reported in patients with medullary thyroid carcinoma receiving GAVRETO. Patients may be at risk of TLS if they have rapidly growing tumors, a high tumor burden, renal dysfunction, or dehydration. Closely monitor patients at risk, consider appropriate prophylaxis including hydration, and treat as clinically indicated.

Risk of Impaired Wound Healing: Impaired wound healing can occur in patients who receive drugs that inhibit the vascular endothelial growth factor (VEGF) signaling pathway. Therefore, GAVRETO has the potential to adversely affect wound healing. Withhold GAVRETO for at least 5 days prior to elective surgery. Do not administer for at least 2 weeks following major surgery and until adequate wound healing. The safety of resumption of GAVRETO after resolution of wound healing complications has not been established.

Embryo-Fetal Toxicity: Based on findings from animal studies and its mechanism of action, GAVRETO can cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective non-hormonal contraception during treatment with GAVRETO and for 2 weeks after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with GAVRETO and for 1 week after the last dose.

Common adverse reactions (≥25%) were musculoskeletal pain, constipation, hypertension, diarrhea, fatigue, edema, pyrexia, and cough. Common Grade 3/4 laboratory abnormalities (≥2%) were decreased lymphocytes, decreased neutrophils, decreased hemoglobin, decreased phosphate, decreased leukocytes, decreased sodium, increased aspartate aminotransferase (AST), increased alanine aminotransferase (ALT), decreased calcium (corrected), decreased platelets, increased alkaline phosphatase, increased potassium, decreased potassium, and increased bilirubin.

Avoid coadministration of GAVRETO with strong or moderate CYP3A inhibitors, P-gp inhibitors, or combined P-gp and strong or moderate CYP3A inhibitors. If coadministration cannot be avoided, reduce the GAVRETO dose. Avoid coadministration of GAVRETO with strong or moderate CYP3A inducers. If coadministration cannot be avoided, increase the GAVRETO dose.

Lactation: Advise women not to breastfeed during treatment with GAVRETO and for 1 week after the last dose.

Pediatric Use: Monitor open growth plates in adolescent patients. Consider interrupting or discontinuing GAVRETO if abnormalities occur.

You may report side effects to the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Please click here to see full Prescribing Information and Patient Information for GAVRETO.

References: 1. GAVRETO® [Package insert], South San Francisco, CA: Rigel Pharmaceuticals, Inc. 2. GAVRETO: Data on file, Rigel Pharmaceuticals, Inc. December 2024.

Rigel logo GAVRETO logo

© 2025 Rigel Pharmaceuticals, Inc. All rights reserved. GAV_LNG-25006 0225
GAVRETO and RIGEL ONECARE are registered trademarks of Rigel Pharmaceuticals, Inc.
RIGEL ONECARE is a patient support center sponsored by Rigel Pharmaceuticals, Inc.
611 Gateway Blvd, Suite 900, South San Francisco, CA 94080

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© 2025 Rigel Pharmaceuticals, Inc. All rights reserved. GAV_LNG-25006 0225
GAVRETO and RIGEL ONECARE are registered trademarks of Rigel Pharmaceuticals, Inc.
RIGEL ONECARE is a patient support center sponsored by Rigel Pharmaceuticals, Inc.
611 Gateway Blvd, Suite 900, South San Francisco, CA 94080

Privacy Policy Terms of Use Contact Us Unsubscribe